250 



PEOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



TABLE OF SPECIES. 



Ario7i ater, Linn. . 

 Vitrea radiatula, Alder 

 V. alliaria, Miill. . . 

 Vallonia pulchella, Miill, 

 V. excentrica 

 Cochlicopa labrica, Miill. 

 Helicella itala, Linn. . 

 H. caperata, Mont. 

 H. virgata, Da C. 

 H. barbara .... 

 Jaminia cylindracea, Da 0. 

 J. miiscorum, Linn. 

 Vertigo pygmcea, Drap. 

 Helix aspersa, Miill. . 

 H. nemoralis, Linn. . 

 Limncea sp. ... 

 L. truncatula, Miill. . 

 i. pereger, Miill. . 

 L. sp. (a) .... 

 Z. sp. (b) .... 

 Z. sp. (c) .... 

 Z. sp. (d) .... 

 Succinea elegans, E.isso 

 aS. sp 



Cliffs, 

 Perran- 

 porth. 



St. Piran's 



Church 



(650 A.D. 



buried up) . 



Lacustrine 



deposit 

 (Holocene). 



Holocene 

 Land 



SheUs. 



Recent. 



Marine shells at 200 feet o.d. : 



Cardium rusticum. Near St. Piran's Church. 

 Purpura lapillus. Edge of lacustrine deposit. 

 Mytilus edulis. Near St. Piran's Church. 



It is my pleasant duty to thank Messrs. B. B, Woodward and 

 A. Santer Kennard for help in determining critical species. They both 

 think some of the fresh-water specimens require further study. 



Perranporth South Cliff. 



